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Inner West RISING DAMP SPECIALISTS

Inner West
RISING DAMP
EXPERTS

Rising damp is one of Sydney's most damaging — and most misunderstood — property problems. If you're seeing blistering paint, mould, mildew or condensation on your walls, rising damp is likely the cause. We specialise in rising damp treatment, subfloor ventilation and mould remediation across all Sydney suburbs — with free inspections, upfront pricing and a lifetime guarantee.

5.0 out of 5 100+ Google reviews
Licensed & insured
Same-day available
Lifetime guarantee

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Rising damp in Inner West

The Inner West is one of Sydney's oldest residential belts — narrow Victorian terraces, semis and workers' cottages packed onto clay-shale, the vast majority built in the 1800s and early 1900s before damp-proof courses were standard. Where a course exists it has usually broken down, clay holds water against the footings, and shared party walls and rendered facades trap moisture. Rising damp and salt-affected lower walls are common right across the area.

The lasting fix is never a render-and-paint that seals the damp in. We diagnose the true source, install a new damp-proof course where the wall needs it, and finish with a breathable, salt-resistant render so the old masonry keeps drying.

Signs you have rising damp
A tide mark up to ~1m on internal walls
Blistering, bubbling or peeling paint
White salt deposits (efflorescence)
Crumbling or hollow-sounding plaster
Damp patches near the floor / skirting
A persistent musty, damp smell

What rising damp does in Inner West

The Inner West's Victorian terraces sit on clay-shale with failed or absent damp-proof courses, so ground moisture wicks up through party walls and old brick. It carries salt to the surface, blistering paint, blowing plaster and rotting skirtings — and because terraces share walls, untreated damp can migrate between homes and into the structural masonry, the costliest damage to undo.

Rising damp services in Inner West

Musty smell or a damp subfloor → Subfloor ventilation

The Inner West's terraces and semis sit low on clay with cramped, damp subfloors. We fit subfloor ventilation to dry them.

Tide marks, peeling paint or salt on walls → Rising damp treatment

Victorian terraces here were built before damp-proofing. Our rising damp treatment injects a new chemical DPC to stop the rise.

Blown, crumbling or hollow plaster → Damp plastering

We strip and re-coat with a breathable salt-resistant plaster system suited to terraces.

Mould on walls, ceilings or in cupboards → Mould remediation

Our mould removal clears growth and fixes the moisture feeding it.

Penetrating damp or wet areas → Waterproofing

We waterproof and tank shared party walls, cellars and wet areas.

Not sure which problem you have? → Free damp inspection

Book a free damp inspection for an honest diagnosis.

Rising damp FAQ — Inner West

Why is rising damp common in Inner West homes?

The Inner West is full of Victorian terraces and workers' cottages on clay-shale, built before modern damp-proofing. Failed or absent damp-proof courses, damp clay footings and shared party walls make rising damp common in Newtown, Marrickville and Balmain.

Which Inner West suburbs do you cover?

All of them — including Newtown, Marrickville, Balmain, Leichhardt, Dulwich Hill, Petersham, Stanmore, Ashfield, Annandale, Rozelle, Tempe, Summer Hill. If your suburb is not listed, call us; we cover the whole area.

Do you work on terraces with shared party walls?

Yes. Party walls between terraces can carry damp between homes and need treatment that accounts for the shared structure. We diagnose how the moisture is moving and treat your wall with a breathable, salt-resistant finish suited to a terrace.

What we do

OUR SERVICES

Complete rising damp, mould and ventilation solutions for Sydney homes

How it works

OUR PROCESS

Simple, transparent and stress-free from first call to finished job

1

Free Inspection

We visit, assess and diagnose the damp at no cost to you.

2

Fixed Quote

Clear upfront pricing. You approve before any work starts.

3

Treatment

Our licensed team completes the job on time and on budget.

4

Guaranteed

Lifetime workmanship guarantee. Done when you're satisfied.

Real results

BEFORE & AFTER

Real rising damp and mould jobs from homes across Sydney

Add your BEFORE photo here
BEFORE
Newtown Terrace — Rising Damp Blistering paint, salt deposits and damp patches on lower walls
Add your AFTER photo here
AFTER
Newtown Terrace — Treated & Replastered Chemical DPC injection + salt-resistant render. Dry walls, restored finish
Add your BEFORE photo here
BEFORE
Mosman Home — Mould & Condensation Black mould, mildew and condensation throughout the ground floor
Add your AFTER photo here
AFTER
Mosman Home — Ventilation Installed Subfloor ventilation system installed. Mould gone, condensation eliminated
What our clients say

GOOGLE REVIEWS

★★★★★

"Older federation home with serious damp issues. Was worried about the original brickwork. Rising Damp Waterproofing were careful, experienced with heritage homes and the result was perfect."

AP
Alex P.Google review
★★★★★

"Our basement had been getting worse every year. Rising Damp Waterproofing waterproofed the whole thing and it's been bone dry through two winters now. Best money we've spent on this house!"

RF
Roberto FabbianoGoogle review
★★★★★

"The correspondence from the company and their staff was very helpful! The job was done in a timely fashion and any additional areas that needed attention were rectified."

MD
Monique DavisGoogle review
5.0 out of 5 — 11 Google reviews

READY TO FIX YOUR DAMP?

Free inspection. Upfront price. Lifetime guarantee. Sydney-wide.

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Where we work

SERVING ALL OF GREATER SYDNEY

From the Inner West to the Northern Beaches, the Eastern Suburbs to Penrith and the Blue Mountains — Rising Damp Sydney treats rising damp, mould, subfloor moisture and waterproofing problems right across the greater Sydney region. Free inspection, fixed price, same team from first call to final coat.

Northern Beaches North Shore Sydney CBD Eastern Suburbs Inner West Parramatta Sutherland Shire Penrith Blue Mountains

RISING DAMP SYDNEY

Sydney's trusted rising damp, mould & subfloor specialists — licensed, insured and lifetime guaranteed.

Service areaAll of greater Sydney & the Blue Mountains
Phone02 9158 9901
HoursMon–Fri 7am–5pm · Sat 8am–2pm